BMW Cooling System Parts & Accessories for BMW 6 Series F12 (2012+)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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BMW N54 N55 S55 Mosselman Thermostat Installation Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:4799665
Part#: THERMINSTALLKT
In Stock
Sale - Save 6% $ 22.99

This product was last offered at the strikethrough price on
06-15-2026

$ 21.64 USD
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Sale - Save 6%
$ 22.99

This product was last offered at the strikethrough price on
06-15-2026

$ 21.64 USD
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BMW N54 N55 S55 Mosselman Thermostat Installation Kit is designed to ensure a seamless installation of the Mosselman thermostat on BMW engines. This comprehensive kit from Turner Motorsport includes all necessary gaskets and components, guaranteeing a reliable and precise installation for optimal engine performance.

  • Complete Kit: Includes all essential gaskets and components required for a hassle-free thermostat installation.
  • Optimal Performance: Ensures proper installation of the Mosselman thermostat, leading to improved engine cooling efficiency and performance.
  • High-Quality Components: Gaskets and parts are manufactured to meet high standards of durability and reliability.
  • Precision Fit: Engineered to match OEM specifications, providing a perfect fit and reliable performance.
  • Ease of Installation: All necessary parts are included, simplifying the installation process and reducing the need for additional purchases.

Upgrade your BMW's cooling system with the Mosselman Thermostat Installation Kit from Turner Motorsport, ensuring a top-quality, reliable setup for your engine.

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Thermostat Replacement kit - 90C
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15744051
Part#: 82142209769KT
In Stock
Sale - Save 3% $ 146.99

This product was last offered at the strikethrough price on
05-03-2026

$ 142.74 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 146.99

This product was last offered at the strikethrough price on
05-03-2026

$ 142.74 USD
Free Shipping on orders $49 and up
Packaged by Turner - Corporate Logo
T#:55353595
Part#: OTN54.T85KT3
In Stock
New Item
$ 390.23 USD
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High oil temperatures are the ultimate enemy of your engine's longevity and performance. If you want to keep pushing your BMW to the limit you need to manage the heat.

Thermostat Replacement Kit - F01, F06, F07, F10, F12, F13
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:41289768
Part#: 115376011591TKT
In Stock
$ 179.99

This product was last offered at the strikethrough price on
09-09-2026

$ 178.99 USD
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$ 178.99 USD
Free Shipping on orders $49 and up
Everything you need to replace your thermostat with a high quality aftermarket unit on your F chassis BMW!

Performance Water Pump & Thermostat Kit - 90*C - S63
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:30397428
Part#: 11537843738KT2
Ships on Nov 2, 2026
$ 579.99

This product was last offered at the strikethrough price on
04-28-2026

$ 549.99 USD
Free Shipping on orders $49 and up
$ 549.99 USD
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The water pump is a known weak point across all BMW models, requiring servicing every 60,000 miles. Along with the water pump, it’s wise to replace the thermostat to ensure your cooling system operates at peak efficiency.

This kit features a 90°C (194°F) thermostat from Hamburg Technic, which opens approximately 15°C earlier than the standard factory thermostat. This lower temperature is particularly advantageous for performance-focused applications.

What's Included:

Genuine BMW Mechanical Water Pump Assembly (11537843738) Hamburg Technic Performance Thermostat - 90°C/194°F (11537586885) Genuine BMW Coolant/Antifreeze - Diluted, 1 Gallon (82141467704) Benefits of a Lower Thermostat Temperature:

Enhanced Engine Cooling: Opens sooner to reduce engine temperature more effectively. Improved Performance: Keeps engine components cooler, allowing for better performance in high-stress conditions. Extended Engine Life: Reduces thermal stress on engine parts, promoting longevity. Prevents Overheating: Helps to avoid overheating in demanding driving scenarios. Optimized Fuel Efficiency: Maintains ideal engine temperature for efficient fuel combustion. Elevate your BMW's cooling system and performance with this expertly curated kit from Turner Motorsport.

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Water Pump And Thermostat Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15777309
Part#: 115176324260-KT
Back Ordered
$ 867.99 USD
Free Shipping on orders $49 and up
The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The OEM kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: OEM thermostat OEM water pump Genuine BMW coolant Mounting hardware
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Elring Freeze Plug
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:591492
Part#: 11117530262
In Stock
$ 21.99 USD
Free Shipping on orders $49 and up
Replace your missing freeze plug today - 110x13mm
BMW Coolant / Antifreeze - 1.5L
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16175674
Part#: 82141467704
Ships on Jan 11, 2027
$ 70.99 USD
Free Shipping on orders $49 and up
Coolant G11 (Concentrate). The right anti-freeze agent makes a key contribution towards the reliable functioning of the engine cooling system under all operating and weather conditions. Cooler anti-freeze agents from Febi are precisely matched to the special requirements of the vehicle manufacturer and offer reliable protection from damages caused by freezing, corrosion, and cavitation. A good functioning cooling system is a primary prerequisite for the optimum operation of the engine. The ideal mixing ratio is 1:1, which offers frost protection to -36° C. With a ratio of 1:1 of water and concentrate, the boiling point of the cooling is approximately 107° C.+ High protection against freezing, corrosion, and cavitation Prevention of deposits and foam formation
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Meistersatz - Corporate Logo
T#:1195781
Part#: 17117639021
Ships in 3 Business Days
$ 30.99

This product was last offered at the strikethrough price on
07-07-2026

$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
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Febi-Bilstein Heater Control Valve - 64114271156
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Febi - Corporate Logo
T#:16907157
Part#: 64114271156
Ships on Jan 11, 2027
$ 115.99

This product was last offered at the strikethrough price on
04-16-2026

$ 105.99 USD
Free Shipping on orders $49 and up
$ 105.99 USD
Free Shipping on orders $49 and up
This valve controls the flow of the coolant into the heater core, which allows warm air to be pushed through the HVAC system.
Meyle Expansion Tank Cap
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:579357
Part#: 3148009004
In Stock
Sale - Save 40% $ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD
Free Shipping on orders $49 and up
Sale - Save 40%
$ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD
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Replace worn or missing pieces.
Febi - Corporate Logo
T#:340719
Part#: 17117639020
In Stock
$ 16.99 USD
Free Shipping on orders $49 and up
This radiator expansion tank cap is used most BMW's from 2006+. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap. 

Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

This item fits the following BMWs:  
2008-2013  E82 BMW  128i 135i 135is 1M Coupe 
2014+  F22 BMW  228i 228i xDrive M235i M235i xDrive 
2012+  F30 BMW  320i 320i xDrive 328d 328d xDrive 328i 328i xDrive 335i 335i xDrive - Sedan 
2013+  F31 BMW  328i xDrive 328d xDrive - Wagon 
2014+  F34 BMW  328i xDrive GT, 335i xDrive GT - Gran Tourismo 
2013+  F32 BMW  428i 428i xDrive 435i 435i xDrive - Coupe 
2013+  F33 BMW  428i Convertible 428i xDrive Convertible 435i Convertible 435i xDrive Convertible- Convertible 
2014+  F36 BMW  428i Gran Coupe 428i xDrive Gran Coupe 435i Gran Coupe 435i xDrive Gran Coupe 
2014+  F07 BMW  535i GT, 535i xDrive GT 
2012+  F10 BMW  528i 528i xDrive 535i 535i xDrive 535d 535d xDrive 
2011+  F10 BMW  528i 528i xDrive 535i 535i xDrive 535d 535d xDrive 
2012+  F12 BMW  640i 640i xDrive 650i 650i xDrive 
2013+  F06 BMW  640i Gran Coupe 640i xDrive Gran Coupe 650i Gran Coupe 650i xDrive Gran Coupe 
2009+  F01 BMW  740i 740li 740li xDrive 740ld xDrive 750i 750li 750i xDrive 750li xDrive 760li 
2013+  E84 BMW  X1 sDrive28i X1 xDrive28i X1 xDrive35i 
2011+  F25 BMW  X3 xDrive28i X3 xDrive28d X3 xDrive35i 
2015+  F26 BMW  X4 xDrive28i X4 xDrive35i 
2007-2013  E70 BMW  X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive35d X5 xDrive35i X5 xDrive48i X5 xDrive50i X5M 
2014+  F15 BMW  X5 sDrive35i X5 xDrive35d X5 xDrive35i X5 xDrive50i 
2008-2014  E71 BMW  X6 xDrive35i X6 xDrive50i X6M 
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Febi Temperature Sensor
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:340711
Part#: 13621433076
In Stock
$ 17.99

This product was last offered at the strikethrough price on
06-22-2026

$ 16.99 USD
Free Shipping on orders $49 and up
$ 16.99 USD
Free Shipping on orders $49 and up
Monitors coolant / oil temperature
Elring - Corporate Logo
T#:596454
Part#: 11517549445
Ships in 1 Business Day
$ 10.99 USD
Free Shipping on orders $49 and up
Replace this gasket anytime you remove or replace the pump.
10,82x1,78 RD HNBR SH65
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:15015311
Part#: 17227581147
Ships in 1 Business Day
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD
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$ 2.99 USD
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O-ring for oil cooler

Expansion Tank Cap
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Febi - Corporate Logo
T#:382437
Part#: 17117639021
Special Order: No Guaranteed ETA
$ 25.99 USD
Free Shipping on orders $49 and up
Maintain maximum cooling efficiency and system pressure with this Febi Bilstein 2.0 bar replacement cap.

BMW Coolant Expansion Tank
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Febi - Corporate Logo
T#:38553896
Part#: 17137575578
Special Order: No Guaranteed ETA
$ 73.99 USD
Free Shipping on orders $49 and up
Coolant Expansion Tank Keep your vehicle's cooling system functioning properly with the Coolant Expansion Tank, designed to safely contain and manage coolant expansion as engine temperatures rise. This durable tank helps regulate pressure and fluid levels, preventing overheating and protecting your engine components from damage. Key Features: OEM-Quality Construction – Built to meet or exceed factory standards for perfect fit and reliability. Long-Lasting Durability – Crafted from high-quality materials resistant to cracking, corrosion, and extreme heat. Pressure Regulation – Ensures balanced pressure and fluid levels for effective cooling system operation. Leak-Free Design – Seals securely to prevent coolant leaks and maintain optimal engine temperature. Simple Installation – Direct-fit replacement for a quick and easy upgrade. Replace your damaged or aging Coolant Expansion Tank to maintain optimal cooling performance and protect your engine from heat-related issues.
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BMW water pump
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:38385338
Part#: 11517596763
Special Order: No Guaranteed ETA
$ 1,067.99 USD
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$ 1,067.99 USD
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If your water pump is failing, you may notice coolant leaks or hear a whining noise from under the hood. However, with an electric water pump, failure can sometimes go unnoticed until overheating occurs. Watch for warning signs and replace your water pump promptly to avoid engine damage. For vehicles without the M Sport package.
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Febi - Corporate Logo
T#:56001934
Part#: 46221
Special Order: No Guaranteed ETA
New Item
$ 19.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein coolant expansion tank cap is designed to maintain the exact 1.4 bar pressure required to maximize your coolant's boiling point.
Febi - Corporate Logo
T#:56544033
Part#: 11537586885
Special Order: No Guaranteed ETA
New Item
$ 68.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein electronic coolant thermostat assembly delivers factory-level thermal control to keep coolant temperatures stable across varying engine loads.

Febi - Corporate Logo
T#:56291026
Part#: 178011
Special Order: No Guaranteed ETA
New Item
$ 879.99 USD
Free Shipping on orders $49 and up
Restore the cooling precision of your BMW with this OEM-spec Febi Bilstein replacement electric water pump.

Febi - Corporate Logo
T#:56724732
Part#: 11517602123
Special Order: No Guaranteed ETA
New Item
$ 2.99 USD
Free Shipping on orders $49 and up
This Febi Bilstein water pump screw offers superior durability designed to maintain consistent clamping pressure under high thermal loads.
Meyle Engine Coolant Thermostat - BMW FXX, GXX
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:52797701
Part#: 3282280016
Ships on Nov 2, 2026
New Item
$ 47.99 USD
Free Shipping on orders $49 and up
This MEYLE thermostat ensures your engine stays at the perfect temperature for efficiency and power.
Meistersatz - Corporate Logo
T#:379740
Part#: 13621433076
In Stock at Vendor
$ 15.99 USD
Free Shipping on orders $49 and up
Monitors coolant / oil temperature


Meistersatz - Corporate Logo
T#:379621
Part#: 17117639020
Ships in 3 Business Days
$ 17.99 USD
Free Shipping on orders $49 and up
Quality aftermarket coolant expansion tank cap.